Improvement in smut-machines



Y' En STATES PATENT OFFICE.

JOSIAH S. POULTNEY, OF AKRON, OHIO, ASSIGNOROF ONE-HALF HIS RIGHT TOJOHN L. TOPLIN, OF SAME PLACE.

IMPROVEMENT IN SMUT-MACHINES.

y Specification forming part of Letters Patent No. 133,480, datedNovember 26, 1872.

To all whom it may concern: v

Be it known that I, J osrAE S. POULTNEY, of Akron, in the county ofSummit and State of Ohio, have invented a new and ImprovedShout-Machine, and I do hereby declare the following to be a' full andexact description of the same, reference being had to the accompanyingdrawing forming part of this specification, in which-- Figure l is avertical section, and Fig. 2 aA horizontal section representing myimproved machine.

Similar letters of reference in the accompanying drawing denote the sameparts.

The object of this invention is, first, to improve the means fordressing the wheat; and, secondly, to enable the parts to be moreperfectly adjusted than heretofore; and the invention consists in theseveral devices for effecting these results, as I will now proceed todescribe.

In the drawing, A represents a cylindrical case containing a cylindricalforaminated screen, B, suitably supported, the case and the screen beingprovided with doors, and being mounted upon legs a t or other suitablesupports. O is a lever articulated at c to one side of the case or frameA, and supported at the other side of the machine by an adjusta- 'blearm, c1, which can be raised and lowered by turning a screw-nut, c2, asshown. D is a shaft, stepped in a box affixed to the lever O, andextending up through the center of the machine and through a fan-box, E,at the upper end thereof, and terminating in a pulley, d, to which abelt may be applied to run the shaft. In the place of the cast-ironsurfaces heretofore employed for dressing the wheat I use stone surfacesF, affixed to the shaft by means of iron plates f and set-screws, sothat the shaft may be withdrawn and the stones taken out and dressed thesame as an ordinary millstone. The upper surfaces are constructed ofstationary stones G, vertically adjustable by means of arms g -andsupporting-screws s, which rest upon ledges t or other suitable supportsattached to the side of the screen, or, if preferred, to the outer case,substantially as represented. The form of the stones may be .varied, asdesired, so as to present a conical dressing surface, as shown in .thedrawing, or an inverted cone, up which the grain will be forced by thefriction of the stones and by the centrifugal force of its ownrevolution around the shaft.

The grain fed to themachine through a tube, H, falls into a smallhopper, I, and thence passes through the eye of the upper stone into thespace between the two stones, where, after being partially dressed, itfalls onto a second large hopper, J, beneath the upper pair of stones.This hopper delivers it to the second pair of stones, where it isfurther dressed, after which it passes to the next pair, and so onthrough the Whole series, finally being discharged at or near the bottomof the machine. The smut, dust, &c., are drawn out through the screen bythe force of the fan-blast, and are driven oif through adischarge-spout, e, at one side ofthe fan-box.

Each stationary stone may be adjusted at the proper distance from therevolving stone by means of the screws s s, and the whole series ofrevolving stones may at any time during thc running of the machine beraised or lowered at the option ofthe person in charge.

A trap-door or slide may be provided in each hopper, in front of thedoor that opens through the case and screen, to enable the operator atany time to examine the quality of the work done by each pair of stonesand make any adjustments that may be found necessary.

Having thus described my invention, what I claim as new, is-

1. In a smut-machine, the employment of a series of adjustable stoneshaving conical surfaces for the purpose of dressing the grain,substantially as described.

2. The adjusting-screws s, arms g, and supporting-brackets t, incombination with the upper stones G, substantially as and for thepurpose set forth.

3. A smut-machine having two or more sets of stationary and revolvingstones, the dressing-surfaces of which are adapted `tobe separately andto ldifferent degrees adjusted to or from each other by separatelymoving the stationary stones, or simultaneously and to the same extentadjusted to or from each other by moving the shaft with the revolvingstones, substantially as described.

JOSIAH S. POULTNEY. j

Witnesses O. M. HAMILTON, P. MCDUEFY.

